297 



Near mutatuSf Har., but inter alia without the least trace of a 

 Ibasal margin to the pronotum; the head of the male without any 

 ■clypeal carina or distinct puncturation, &c. 

 ~ KS. Wales; Sydney (Mr. Lea). 



O. Dumhrelli, sp. nov. Mas (?). Sat latus ; supra (pygidio 

 setoso excepto) glaber ; subtus fulvo-hirtus ; sat nitidus ; 

 niger, tarsis palpis antennisque (harum clava dilutiori) fer- 

 rugineis ; clypeo transversim ruguloso-punctulato, antice vix 

 sinuato ; sutura clypeali sat fortiter carinata utrinque 

 abbreviata ; carina f rontali sat elevata ; capite inter carinas 

 subtilius nee crebre punctulato ; oculis arigustis sat aspere 

 granulatis; prothorace quam loagiori ut IS ad 11 latiori, 

 supra antice crebrius fortius (basin lateraque versus mao^is 

 sparsim magis subtiliter) punctulato, postice longitudinaliter 

 sulcato, antice perspicue retuso (parte retusa media antror- 

 sum perspicue sat late gibbosa), foveis sublateralibus sat 

 profundis, lateribus ante medium vix (pone medium fortius) 

 sinuatis angulis anticis sat acutis posticis obtusis, basi baud 

 marginata ; elytris punctulato-striatis, puncturis in striis 

 quam strise sat latioribus, interstitiis subconvexis subtilissime 

 coriaceis subtiliter minus, crebre (latera versus minus sub- 

 tiliter) punctulatis ; pygidio coriaceo sparsim leviter (meta- 

 sterno sparsim subtilius, antice subgrosse) punctulato; tibiis 

 anticis leviter elongatis ; unguiculis sat parvis. Long., 2| 1.; 

 lat., 11 1. 



A small inconspicuous species resembling O. Fletcheri, Blackb., 

 and O. sydneyensis, Blackb., and differing inte?' alia from the 

 former by its clypeus not emarginate in front and the testaceous 

 club of its antennsB, from the latter by its pronotum longitudin- 

 ally sulcate (except near the front) and differently punctulato. 

 Also resembles some species of Group V. (e.g. 0. Helmsi, 

 Blackb., which has the metasternum very differently sculptured, 

 Ac). Taken at Galston by Messrs. Lea and Dumbrell ; given 

 to me by the former. 



N.S. Wales. 

 O. negatoriiis, sp. nov. Fem. (?). Sat latus ; supra glaber ; subtus 

 fulvo-hirtus ; sat nitidus ; niger leviter aenescens, tarsis 

 palpis antennarumque basi subferrugineis ; clypeo transver- 

 sim ruguloso, antice emarginato ; sutura clypeali sat fortiter 

 carinata ; carina f rontali sat obsoleta arcuata et sinuata vix 

 continua ; capite toto pone clypeum sat sequaliter sat grosse 

 punctulato; prothorace quam longiori fere ut 18 ad 11 

 latiori, supra sat gequali, sat crebre minus subtiliter punc- 

 tulato, versus latera vix foveolato sed tuberculo obtuso laevi 

 instructo, lateribus ante medium baud (pone medium sat 



